Ceiling board aperture

Details Ceiling board aperture Ceiling board aperture

1992-04-23

1993-08-03

Friedman, Carl D.

Static structures (e.g., buildings)

Wall, ceiling, or floor designed for utilities

Suspended ceiling

522208, 52316, E04C 900

Patent

active

052318109

ABSTRACT:
The invention is a ceiling board with a factory cut aperture therein. The edges of the ceiling board and/or the edges of a design cut in the face of the board are of the same or compatible design to that of the edge(s) of the aperture.

REFERENCES:
patent: 1129637 (1915-02-01), Cameron
patent: 2035902 (1936-03-01), MacLeod
patent: 3030093 (1962-04-01), Reintjes
patent: 3332194 (1967-07-01), Jack
patent: 3721050 (1973-03-01), Perina
patent: 3848385 (1974-11-01), Thompson
patent: 4885889 (1989-12-01), Hemphill et al.

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